Resources Contact Us Home
Electronic timepiece

Image Number 5 for United States Patent #4212158.

An electronic timepiece having an intermittent driving means for rotating the second hand step by step, in which the second hand may be driven in two or more ways, one of by a large step as driving the second hand at the rate of one step per second and the other is by a small step such as driving the second hand at the rate of ten steps per second. There is provided a large step driving pulse producing circuit, a small step driving pulse producing circuit, a transducer for transducing the pulse into the rotating motion, a large step transmitting means, a small step transmitting means, a train for transmitting the rotating motion to the second hand, and means for changing the pulses applied to the transducer and for changing the transmitting means.

  Recently Added Patents
Damage resistant antenna
Light fitting
Guitar strap attachment means
Eyeglass component
Image forming apparatus and job request control method instructed by authenticated users
Bandpass filter and radio communication module and radio communication device using the same
Optical packet signal transmission device and WDM optical communication network
  Randomly Featured Patents
Electronic component and semiconductor device, method for manufacturing the same, circuit board have the same mounted thereon, and electronic equipment having the circuit board
Compact electronic equipment
Series of geared motors
Active-matrix addressed reflective LCD and method of fabricating the same
Feedback estimation of joint forces and joint movements
Washer arrangement for a windscreen wiper
Valve train and method for reducing oil flow to deactivated engine valves
Method of treating addiction or dependence using a ligand for a monamine receptor or transporter
Potential control for high-voltage devices
Headphone sound system